The best thing you could possibly use to lubricat the axis lock and inner mechanism is White Lightening. If posstible take the knife apart and put this where the spring is on the plastic and on the metal liner. Pretty much everything in that area and then wipe it off. I then add 3 in 1 to the washers for smooth action there. Its the only way to go!!!!!!
White lightining contains WAX. I used to use it on my bike chains until I realized that it built up and therefore collected dirt. The stuff sucks, but, glad you like it!